My experience with SO-239' / PL-259's -was- at VHF and UHF, and I said so in my posting.
I was made aware of this when the Colorado Springs radio club ordered a 4-port divider to feed their 2M repeater's antennas and they specified / insisted on me building it with SO-239's. I shipped it and within a few days they were complaining of high SWR. Before getting the original one back I built and shipped a second unit, only to get the same report. It was only when I built the 3rd unit with N's did it work correctly. My friends at the NBS labs ... who originated NBS yagi design (W0PW / W0EYE) ... along with the particular power divider design ... explained what was going on. The non-50 ohm SO-239's connected to the 35 ohm transmission line / power divider were influencing the impedance of divider. My years at CU's radio astronomy lab and the NBS cafeteria represent some of the best "learning" in my career. I learned much via napkin tutoring done by some of the nation's best "radio" minds. 73! Ken Kopp - K0PP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
